If you install the upper drag strut incorrectly， it will hit the lower drag strut during retraction.
发布于 2021-04-24 06:13:56
【单选题】 A The removal of the upper drag strut has to be done properly so that the lower one can fully extend. B The correction installation of the upper drag strut can prevent the retraction of the lower drag strut. C If the upper drag strut is installed improperly, the lower one will be hit during retraction.
